// flushes the data in the BGZF block
protected void FlushBlock()
{
if (_compressQueue != null)
{
// Save the block to the queue to be processed on multiple threads.
CompressedData compressedData = new CompressedData();
_writeQueue.Add(compressedData);
_compressQueue.Add(new Data((byte[])UncompressedBlock.Clone(), BlockOffset, compressedData));
BlockOffset = 0;
}
else
{
// flush all of the remaining blocks
while (BlockOffset > 0)
{
BlockAddress += FlushSingleBlock();
}
}
}
// writes data to the BGZF block
protected int Write(byte[] data, uint dataLength)
{
// initialize
const int blockLength = MaxBlockSize;
int numBytesWritten = 0;
int inputIndex = 0;
// copy the data to the buffer
while (numBytesWritten < dataLength)
{
int copyLength = Math.Min(blockLength - BlockOffset, (int)dataLength - numBytesWritten);
Buffer.BlockCopy(data, inputIndex, UncompressedBlock, BlockOffset, copyLength);
BlockOffset += copyLength;
inputIndex += copyLength;
numBytesWritten += copyLength;
if (BlockOffset == blockLength)
{
if (_compressQueue != null)
{
// Save the block to the queue to be processed on multiple threads.
CompressedData compressedData = new CompressedData();
_writeQueue.Add(compressedData);
_compressQueue.Add(new Data((byte[])UncompressedBlock.Clone(), blockLength, compressedData));
BlockOffset = 0;
}
else
{
FlushBlock();
}
}
}
return(numBytesWritten);
}
